广深线第六次提速列车交会压力波实测研究

为支撑全国铁路第六次大提速,在广深线4.0 m线间距下,针对动车组(D字头)及25型提速客车,以不同的速度交会进行了实车试验,测量了列车交会压力波及车内压力变化,得到了列车交会压力波随交会速度变化的规律,评估了动车组与动车组等速交会、动车组与25型提速客车不等速交会的安全性和旅客乘坐的舒适性.结果表明,在4.0m线间距下,动车组以220km/h的速度运行,不影响交会的安全性和旅客乘坐的舒适性,提速方案可行.

Experiment study of pressure pulse caused by trains passing each other on Guangzhou-Shenzhen railway for the sixth speed-up

To support the sixth speed-up of railways all over the country,the Dgroup and the 25-type speed-up passenger trains were used to make full scale tests for the pressure pulse and the pressure change inside the train caused by trains passing each other with different speeds on Guang zhou-Shen zhen railway with the track interval being 4.0m.The variation rules of the pressure pulse with respect to the train speed were obtained.The safety of the trains and the comfort of passengers were assessed for two D-group trains passing each other at equal speeds,and one D-group train and one 25-type train passing each other at unequal speeds.The results show that under the condition that the track interval is 4.0m,there will be no impact on the trains' safety and the passengers' comfort when trains passing each other for the D-group train which runs at the speed of 220 km/h.Thus the plan for speed-up is feasible.